Floating Population

[NWsenior07]

I'm trying to add a .tgo population to this terrain and I have it plugged into the compute terrain node but for some reason, the population just floats a few hundred meters above the terrain. I've included an image and the .tgd file so if anyone would like to take a look at it and see if you can figure out whats going on it would be greatly appreciated.

[bigben]

Try using the sand node instead of the compute terrain to start with

[NWsenior07]

For the terrain?

[NWsenior07]

Well I tried to plug the sand shader into the terrain node of the pop, the pop is now airborne but it resembles the terrain to a degree.

[bigben]

Bit busy at the moment, but this post might help.
http://forums.planetside.co.uk/index.php?topic=1872.0

[Volker Harun]

In the populator, set the that -1200m for Y to 0. And of course BigBen's advice.

[FrankB]

if the displacements have occured after the compute terrain node, TG won't know the correct final coordinates of the terrain, hence the populator will be fed with "wrong" data. You either need to make all your displacements before the compute terrain node, or plug in a second compute terrain node after your displacements.

Regards,
Frank

[moodflow]

It might not even require another 'compute terrain' node.  I had a similar problem a few days ago, and just set the population to use the last surface shader (rather than compute terrain), and this solved the problem.

[NWsenior07]

I've tried to set the population to the last shader, and it still doesn't work. All of my displacement is before the compute terrain, should I try adding another compute terrain?

[Buzzzzz]

I've tried to set the population to the last shader, and it still doesn't work. All of my displacement is before the compute terrain, should I try adding another compute terrain?

I just looked at your tgd file and made a few adjustments. I added a distribution shader to your population via the "Us Density Shader" and assigned the population to the sand layer. Re directed it to the plants on my machine. I also unhooked the pop control shader you had hooked the the compute terrain. Did a populate now and all the plants were sitting on the terrain as they should be.

Hope this helps

[NWsenior07]

Thanks for tweaking the file, for some reason it generates a bunch of errors when I load it. I've attempted to hook the shaders up the same way, but its not working. I see how it might work though.

[Buzzzzz]

Thanks for tweaking the file, for some reason it generates a bunch of errors when I load it. I've attempted to hook the shaders up the same way, but its not working. I see how it might work though.

Here's what I see on this end.

[NWsenior07]

I'm still having the same issue, But I'm thinking that the population won't be visible enough to warrant the extra render time.